Well protection device for elevators



9 9- H. F. RICHARDSON 1,738,729

WELL PROTECTION DEV-ICE FOR ELEVATORS Filed Sept. 21. 1928 Patented Dec. 10, 1929 HENRY F. RIonARnsoN, or NORTHPOBT, NEW YORK,

ASSIGN OR" TO ELEVATOR. SUP- IPLIES COMPANY, ING, or HOBOKEN, NEW JERsEY,"A .coRroRATroN OF N 'J R SEY WELL .PRQTEOTION :oEvIoE roR ELEvA'roRs i Application filed September 21, 1928. Serial ms. 307,384.

This invention relates to elevators and particularly to means for facilitating the removal of dust and dirt and other refuse which accumulates in elevator cabs.

One of the principal objects of the invention is to provide means for preventing the accumulation of such refuse in the pit at the bottom of the elevator shaft. In this connection a feature of the invention is the provision of means for placing a receptacle in the space existing between the elevator and the enclosure walls of the shaft so that when the caretaker sweeps out the elevator cab the refuse will not fall through such space as it usually does to cause an unsightly and possibly dangerous accumulation of refuse at the bottom of the elevator shaft.

Another object of the invention is to provide means for automatically projecting and withdrawing such a receptacle from the location which it occupies during the sweeping operation.

the use of the invention herein disclosed in addition to those above enumerated will be obvious from a reading of the following description, an understanding of which may be facilitated by reference to the accompanying drawings, wherein;

Figure 1 is a view in elevation and partly in section showing a portion of an elevator car in its relation to the opening in the enclosure wall occurring at one of the floors of the building V Figure 2 is an elevation view of the preferred embodiment of the invention as applied to the floor of an elevator car;

' Figure 3 is a view in perspective of the parts shown in Figures 1 and 2;

Figure 4: is a view of a modified form of the invention applied to anelevator car shown in its true relation to an opening in the enclosurewall;and c Figure 5 is a View in perspective of the modification shown in Figure 4.

Referring to the drawings reference character 1 indicates the floor of an elevator car 2 situated'in the enclosure,'one wall of which is indicated at 3, the carbeing shown on a level with one of the floors 4 of the building, said floor being provided with a door 5 guarding the opening to the elevator shaft, the usual sill or threshold occurring at such floor openings being indicated at 6 and the usual threshold on the elevator car being indicated at 7. A pair of brackets 9 and lO (see Figure 2) are shown attached to the underside of. the floor 1 of the elevatorcar, the brackets having suitable openings therein serving as means for supportingthe rod 12, the latter having an e'kt-ension at one end thereof to which is attached a crank arm 13 rigidly secured thereto. by suitable means such as set screw 14. The other end ofthe crank arm 13 connects with a rod 15 passing up through the fioor of the elevator car and having at its up per end a'p'edal 16, which, when stepped upon, causes the compression of a spring 17 against the collar 18 resting on the floor 1.v Between the brackets 9 and 10' is shown a pair of supporting arms 19 and 20 having means at their outer end for the retention of a second rod 21 somewhat similar to the rod 12. These two rods 12 and. 21 preferably serve as the means for supporting and attaching any suit able receptacle to be used as the means for catching the refuseswept from the elevator car. As shown in Figures 1,2 and 3this receptacle takes theform of a cloth or canvas sack or bag 22, which may be secured tothe rods 12 and 21 by any suitable means, such'as the hooks 23. With thisconstruction it is apparent that the force of spring 17 will normally hold the rod 15 and hence the crank arm 13- and the arms 19 and 20 in the positions shown in full lines in Figure 1, in which posia tion the receptacle is completely within the vertical projection of the edge of the threshold 7 on the elevator car. This is the POST tion the apparatus normally occupies during operation of the elevator and by this construction any collision or interference between parts on the elevator car and along the I shaftway enclosure is prevented.

When the attendant desires to sweep out the elevator it is only necessary for him'to step upon the pedal 16, thereby projecting the bag and arms 13 and 19-to thepositions indicated in dash lines in Figure 1, in which position the receptacle is in position to catch any refuse swept out of the car.

Figures 4: and shows; modified typeof' receptacle consisting of atray or trough 25 preferably, though notnecessa'rily, of metal.

Such a type of receptacle may be preferred in somecases to the type shown in Figures 1,

i 2 and 3. As indicated in Figures 4and 5 the tray may be removed from the arms and 31 simply by lifting the tray from the sockets 32 and'33 on the ends of the arms 30 and 31 respectively. This tray 25 is shown as being subject to the same type of control asthe sack 22 ofFigures 1, 2 a1id3, the tray norma'lly occupyingthe positionsliown infull lines in Figure and being'capable of projection into thedashline position shown upon pressure being applied to the pedal '35.

a I wish it to be understood that I do not limit myself to the specific embodiment of the invention disclosed, herein, being obvious that numerous changes may be made in the construction, combination and method of operation of the parts withoutdeparting yfrom-the scope of this invention as disclosed herein and as defined inthe appended claims.

I claim:

1. In combination with a dust collecting receptacle, means for supporting said re-' ceptacle beneath the floor of an elevator cab,

a spring pressed rod normally serving to maintain said'receptacle in such position,and

means located in part in the elevator cab for projecting said receptacle into the space eX- isting between the elevator cab and the enclosure wall, said means acting to overcome the normal tendency of said spring pressed rod..,

2. Apparatus for use in collecting dust and litter accumulating in elevator cabs comprisinga receptacle, means for supporting said receptacle beneath the floor of the cab and out of engagement with the shaft-way walls, and means located in part onthe elevator cab for pro ecting said receptacle 'intothesp'a'ce between the elevator cab and the shaft-way wall. 7

,3. Apparatus for use in collecting dust and litter accumulating in elevator cabs comprisinga receptacle, means for supportingsaidreceptacle beneath the floor of the cab and out of engagement with the shaft-way Walls,

I means located in pa'rtoii the elevator cab for projecting said, receptacle into the space betweenthe elevator cab and'the shafteway Wall, and means for returning said receptacle to its normal position when it is desired to 

